teks rev

Question 1

What is the best way to mitigate deforestation?

Answer 1

Replant and protect trees in areas that have been previously cleared

Question 2

Why the lower portion of the troposphere is warmer than the upper portion?

Answer 2

The surface of earth absorbs sunlight, heating the lower portion of the troposphere more than the upper part

Question 3

Silver carp were introduced to the US in 197-s from China to control algal bloom. They escaped from captivity and reproduce rapidly. Which one described an unintended negative consequence of carp introduction

Answer 3

Silver carp became an invasive species in the US because their numbers were not being controlled by natural predators.

Question 4

Cane toads are an invasive species, researches hypothesize that cane toads are negatively affecting native species. The researches observed different location with and without cane toads and collected the data below

Answer 4

The results support the researches hypothesis because there is a greater biodiversity at sites without cane toads

Question 5

Best describes a density-independent factor that controls population size

Answer 5

occurences of droughts and flooding

Question 6

best describes the role of moss in the transition to stage 3 of the process

Answer 6

it breaks down rocks and adds organic nutrients to the soil

Question 7

best identifies and describes the process that is illustrated in the diagram above?

Answer 7

primary succession, because the process in the diagram begins with bare rock

Question 8

earth currently roatates on an axis at an angle of 23.5 degrees. If that axis changed to 20 degrees, so that the axis was closer to vertical, which of the following would be expected to occur?

Answer 8

Earth would experience a change in seasonal timing and lengths

Question 9

best following the examples of a tragedy of the commons

Answer 9

accumulations of plastics in the great pacific garbage patch